CN108442557A - A kind of double-slider piezoelectricity SMA composite shock-absorbing devices - Google Patents
A kind of double-slider piezoelectricity SMA composite shock-absorbing devices Download PDFInfo
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- CN108442557A CN108442557A CN201810489883.5A CN201810489883A CN108442557A CN 108442557 A CN108442557 A CN 108442557A CN 201810489883 A CN201810489883 A CN 201810489883A CN 108442557 A CN108442557 A CN 108442557A
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- sliding block
- babinet
- slider
- sma
- side wall
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- 239000002131 composite material Substances 0.000 title claims abstract description 20
- 238000013016 damping Methods 0.000 claims abstract description 7
- 238000005265 energy consumption Methods 0.000 claims description 13
- 239000000919 ceramic Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000007777 multifunctional material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Environmental & Geological Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A kind of double-slider piezoelectricity SMA composite shock-absorbing devices are mainly made of babinet, sliding block, sliding block cover board, anchor case, location hole, marmem (SMA) silk, operating bar, connecting rod, fixed link and piezoelectric actuator.Operating bar is fixed across babinet left side wall with left slider；Connecting rod one end is fixed with left slider, and the other end is fixed across anchor case with right sliding block, and fixed link is mounted on the right side wall of babinet.There is a pair of of sliding block at left and right sides of babinet, have along the screwed through hole in horizontal axis direction on each sliding block, and there are two the holes for placing piezoelectric actuator along short transverse, its hole depth is more than the height of piezoelectric ceramics, respectively there is a small cylinder at position corresponding with hole on each sliding block cover board, and it is more slightly higher than damping device wall box to be put into the height after sliding block.There are the cuboid anchor case of a uncovered, front-rear side walls to have with wall box contact position and respectively have a positioning hole in the middle part of babinet.SMA pass through sliding block, one end to be fixed with wall box, and another section is anchored in anchor case.
Description
Technical field
The invention belongs to technical field of civil engineering, are related to structural hybrid control, more particularly to a kind of double-slider piezoelectricity SMA
Composite shock-absorbing device.
Background technology
Mixing control is while to install shaking for active/semi-automatic control device and passive control device in a kind of structure
Dynamic control technology.The control effect of active control is good, and control system is complicated, at high price, though passive control installation is simple, makes
Valence is cheap, and performance is stablized, but due to that cannot adjust control force in real time, control effect is poor.Therefore, the two is mounted on same
It works independently jointly in structure, you can respective advantage is played, and the defect and deficiency when single control device work can be made up,
The stability for improving entire control system operation, improves its control effect.
Intellectual material has become the research heat in civil structure vibration control field as a kind of emerging multifunctional material
Point, and plentiful and substantial achievement in research is achieved, it has broad application prospects.Marmem (SMA) and piezoelectric ceramics are soil
The common intellectual material of work engineering field, SMA passive damping devices can be made in the former, and performance is stablized, and energy dissipation capacity is strong；The latter is past
Half active energy consumer of piezoelectricity is made in past combined with frcition damper, and electrostrictive response is fast, and can real-time adjusting control power.It fills
It is divided to and can be made into piezoelectric-SMA composite shock-absorbing device using the advantages of two kinds of dampers.Such as publication number CN105350679A and
The piezoelectric-SMA composite shock-absorbing device of CN105201099A designs is all single sliding block molding box formula damping device, and such sliding block is sliding
In will certainly cause the uneven of frictional force；And the former SMA and piezoelectric friction damper work at the same time, when small shake start compared with
Difficulty, and the latter SMA units and piezoelectric friction damper work successively, although easily starting up, the pulling force of later stage SMA is very
Greatly, piezoelectricity control force adjustable extent is smaller at this time, and semi- active control is less efficient.
Invention content
In order to overcome the disadvantages of the above prior art, the purpose of the present invention is to provide a kind of double-slider piezoelectricity SMA is compound
Damping device, frictional force is uniform, energy consumption cell layout is reasonable, when medium-small leve vibration occurs, piezoelectricity friction energy consumption unit
It can carry out semi- active control；When big vibration occurs, piezoelectricity friction energy consumption unit first works, and then SMA interventions, further carry
Highly energy-consuming ability.
To achieve the goals above, the technical solution adopted by the present invention is：
A kind of double-slider piezoelectricity SMA composite shock-absorbing devices, including babinet 1 have been set gradually from left to right in the babinet 1
Left slider 2, anchor case 4 and the right sliding block 3 slided in left-right direction, operating bar 10 pass through the left side of babinet 1 left side wall and left slider 2
Wall is fixedly connected；9 one end of connecting rod and the right side wall of left slider 2 are fixed, and the other end passes through the left side wall of anchor case 4 and right sliding block 3
Fixed, fixed link 11 is mounted on the right side wall of babinet 1, and there are two for placing Piezoelectric Driving on left slider 2 and right sliding block 3
Horizontal through hole on the vertical hole of device 7 and a front-rear direction, one 5 one end of SMA silks are fixed with 1 left side wall of babinet, separately
One end is fixed on after passing through left slider 2 on 4 left side wall of anchor case；26 one end of SMA silks is fixed with 1 right side wall of babinet, and the other end passes through
It is fixed on after right sliding block 3 on 4 right side wall of anchor case.
Respectively there are a positioning hole 13, location hole 13 to run through the side wall of babinet 1 at the front-rear side walls center of the anchor case 4, ensures
Anchor case 4 place after position, make equal length when SMA silks 1 and the fixation of SMA silks 26.
The operating bar 10, left slider 2, connecting rod 9 and right sliding block 3 constitute piezoelectricity friction energy consumption piston, as one
Grade energy consumption unit, works first when vibrating the when of occurring；The anchor case 4, SMA silks 1 and SMA silks 26 have collectively constituted two level consumption
Energy unit,
The anchor case 4 is a half-headed rectangle small box.
4 height of anchor case is more slightly lower than 1 side wall of damping device babinet, to prevent from rubbing with babinet 1.
Match at the top of the deep height for being more than piezoelectric actuator 7 of the vertical holes hole, the left slider 2 and right sliding block 3
It sets there are one sliding block cover board 14, there is a small cylinder 15 at position corresponding with vertical hole respectively on each sliding block cover board 14.It is sliding
Height after block cover board 14 is matched with sliding block is more slightly higher than 1 side wall of babinet, to ensure the application of frictional force.
The horizontal through hole is located at the middle position of sliding block or so and upper and lower directions, and horizontal through hole carries spiral shell
Line.
There are the long and narrow hole slot 12 of left and right directions, hole slot 12 and the horizontal through holes for the front-rear side walls of the babinet 1
Corresponding, the conducting wire 8 of piezoelectric actuator 7 is connect across vertical hole, horizontal through hole and hole slot 12 with external power supply, anti-limited slip block
It is torn in motion process.
The anchor case 4 is located at the middle position of babinet 1, left slider 2 and right sliding block 3 is symmetrical is distributed in the two of anchor case 4
Side.
Compared with prior art, the beneficial effects of the invention are as follows：Consuming energy, cell layout is reasonable, and frictional force is uniform, has special
SMA anchorage boxes, SMA are fixed conveniently；Piezoelectricity friction unit first works, and works after SMA units, and semi- active control is efficient,
Applied widely, energy dissipation capacity is good.
Description of the drawings
Fig. 1 be double-slider piezoelectric-SMA composite shock-absorbing device of the present invention 3 dimensional drawing (without sliding block cover board and
Damper top cover of box).
Fig. 2 is the profile in plan of double-slider piezoelectric-SMA composite shock-absorbing device of the present invention.
Fig. 3 is the vertical view and front view of sliding block sliding block cover board of the present invention.
In figure：1. damper babinet；2. left slider；3. right sliding block；4. anchor case；5.SMA silks one；6.SMA silks two；7. piezoelectricity
Driver；8. piezoelectric actuator conducting wire；9. connecting rod；10. operating bar；11. fixed link；12. hole slot；13. location hole；14. sliding
Block cover board；15. small cylinder.
Specific implementation mode
The embodiment that the present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of double-slider piezoelectricity SMA composite shock-absorbing devices of the present invention, mainly by babinet 1, a left side
Sliding block 2, right sliding block 3, sliding block cover board 14, anchor case 4, location hole 13, SMA silks 1, SMA silks 26, piezoelectric actuator 7, operating bar
10, the compositions such as connecting rod 9, fixed link 11, hole slot 12.
Anchor case 4 is a half-headed rectangle small box, is located at the middle position of babinet 1, highly than damping device babinet 1
Side wall is slightly lower, to prevent from rubbing with babinet 1.Anchor case 4 provides adequate space for SMA fixations, and as slide mass
SMA tension energy consumptions are driven, while comparing entity sliding block, reduce the total weight of device.
Left slider 2 and the symmetrical both sides for being distributed in anchor case 4 of right sliding block 3, on left slider 2 and right sliding block 3 there are two
The screwed water being connected to vertical hole on vertical hole and a front-rear direction for placing piezoelectric actuator 7
Flat through hole, vertical holes hole are more than the height of piezoelectric actuator 7 deeply, and horizontal through hole is located at sliding block or so and upper and lower directions
Middle position, on the one hand horizontal through hole is convenient for the connection of rod piece, on the other hand can play the effect of loss of weight.It is corresponding to it
Babinet 1 front-rear side walls there are hole slot 12 long and narrow in left-right direction, the conducting wire 8 of piezoelectric actuator passes through vertical hole, water
Flat through hole and hole slot 12 are connect with external power supply, prevent from being torn during slide block movement.
The top of left slider 2 and right sliding block 3 is each equipped with a sliding block cover board 14, on each sliding block cover board 14 with vertical holes
There is a small cylinder 15 at the corresponding position in hole respectively.Height after sliding block cover board 14 is matched with sliding block is more slightly higher than 1 side wall of babinet, with
Ensure the application of frictional force.
Operating bar 10 is fixedly connected across 1 left side wall of babinet with the left side wall of left slider 2；9 one end of connecting rod and left slider 2
Right side wall fix, the other end passes through anchor case 4 and the left side wall of right sliding block 3 to fix, right side wall of the fixed link 11 mounted on babinet 1
On.
One 5 one end of SMA silks is fixed with 1 left side wall of babinet, and the other end is fixed on after passing through left slider 2 on 4 left side wall of anchor case；
26 one end of SMA silks is fixed with 1 right side wall of babinet, and the other end is fixed on after passing through right sliding block 3 on 4 right side wall of anchor case.
Operating bar 10, left slider 2, connecting rod 9 and right sliding block 3 constitute piezoelectricity friction energy consumption piston, are consumed as level-one
Energy unit works first when vibrating the when of occurring；Anchor case 4, SMA silks 1 and SMA silks 26 have collectively constituted two level energy consumption unit, when
When vibration is reinforced, work is intervened.
To ensure that the position after anchor case 4 is placed is placed in the middle, and make equal length when SMA silks 1 and the fixation of SMA silks 26, anchor
The side wall that a positioning hole 13 passes through babinet 1 is respectively provided at the front-rear side walls center of case 4, when SMA fixed, 4 both sides of anchor case are first
It is inserted into location hole 13 with locating rod, then installation SMA silks 1 and SMA silks 26 extract positioning after SMA are stablized respectively successively
Bar.
Babinet 1 is connect with head cover with fixing screws, between the sliding block and 1 bottom plate of babinet and head cover that are put into offer after cover board
Frictional force (head cover refers to the lid of damper babinet 1, it is in the upper surface of sliding block cover board 14), adjust piezoelectric actuator 7 it is defeated
Frictional force can be changed in real time by entering voltage, realize semi- active control.Even if electric system is failed, initial frictional and SMA according to
It can so consume energy.
When medium-small leve vibration occurs, level-one energy consumption unit works first, and sliding block starts to horizontally slip, and adjusts pressure at this time
The voltage of electric drive 7 can change the size of frictional force in real time, realize semi- active control；It is sliding when vibration further strengthens
Block moves to 4 side wall of anchor case, and anchor case 4 is driven to move together, and SMA start tension energy consumption, and cushioning ability further increases.
Claims (10)
1. a kind of double-slider piezoelectricity SMA composite shock-absorbing devices, including babinet (1), which is characterized in that from a left side in the babinet (1)
It is disposed with the left slider (2), anchor case (4) and right sliding block (3) slided in left-right direction to the right side, operating bar (10) passes through babinet
(1) left side wall is fixedly connected with the left side wall of left slider (2)；Connecting rod (9) one end and the right side wall of left slider (2) are fixed, separately
One end passes through anchor case (4) and the left side wall of right sliding block (3) to fix, and fixed link (11) is mounted on the right side wall of babinet (1), left cunning
There are two on the vertical hole and a front-rear direction for placing piezoelectric actuator (7) on block (2) and right sliding block (3)
Horizontal through hole, one (5) one end of SMA silks are fixed with babinet (1) left side wall, and the other end is fixed on anchor case after passing through left slider (2)
(4) on left side wall；Two (6) one end of SMA silks is fixed with babinet (1) right side wall, and the other end is fixed on anchor case after passing through right sliding block (3)
(4) on right side wall.
2. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the anchor case (4) it is front and back
Respectively there are a positioning hole (13), location hole (13) to run through the side wall of babinet (1) at side wall center, after ensure that anchor case (4) is placed
Position makes equal length when SMA silks one (5) and fixed SMA silks two (6).
3. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the operating bar (10), a left side
Sliding block (2), connecting rod (9) and right sliding block (3) constitute piezoelectricity friction energy consumption piston, as level-one energy consumption unit, work as vibration
It works first when generation；The anchor case (4), SMA silks one (5) and SMA silks two (6) have collectively constituted two level energy consumption unit.
4. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the anchor case (4) is a nothing
The rectangle small box of head cover.
5. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that anchor case (4) the height ratio
Damping device babinet (1) side wall is slightly lower, to prevent from rubbing with babinet (1).
6. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the vertical holes hole is deep
More than the height of piezoelectric actuator (7), a sliding block cover board is each equipped at the top of the left slider (2) and right sliding block (3)
(14), there is a small cylinder (15) at position corresponding with vertical hole respectively on each sliding block cover board (14).
7. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 6, which is characterized in that the sliding block cover board (14)
Height after being matched with sliding block is more slightly higher than babinet (1) side wall, to ensure the application of frictional force.
8. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the horizontal through hole position
In sliding block or so and the middle position of upper and lower directions, and horizontal through hole is threaded.
9. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the babinet (1) it is front and back
Side wall is there are the long and narrow hole slot (12) of left and right directions, and hole slot (12) is corresponding with the horizontal through hole, piezoelectric actuator (7)
Conducting wire (8) is connect across vertical hole, horizontal through hole and hole slot (12) with external power supply, prevents from being pulled during slide block movement
It is disconnected.
10. double-slider piezoelectricity SMA composite shock-absorbing devices according to claim 1, which is characterized in that the anchor case (4) is located at
The middle position of babinet (1), left slider (2) and the symmetrical both sides for being distributed in anchor case (4) of right sliding block (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810489883.5A CN108442557B (en) | 2018-05-21 | 2018-05-21 | Double-slider piezoelectric SMA composite damping device |
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|---|---|---|---|
| CN201810489883.5A CN108442557B (en) | 2018-05-21 | 2018-05-21 | Double-slider piezoelectric SMA composite damping device |
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| CN108442557B CN108442557B (en) | 2023-12-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708472A (en) * | 2018-08-27 | 2018-10-26 | 西安建筑科技大学 | A kind of box SMA- piezoelectricity change friction composite damper |
| CN109811925A (en) * | 2019-02-20 | 2019-05-28 | 广州大学 | A kind of rotary frcition damper of displacement equations type |
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| CN108708472A (en) * | 2018-08-27 | 2018-10-26 | 西安建筑科技大学 | A kind of box SMA- piezoelectricity change friction composite damper |
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| CN109811925A (en) * | 2019-02-20 | 2019-05-28 | 广州大学 | A kind of rotary frcition damper of displacement equations type |
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| Publication number | Publication date |
|---|---|
| CN108442557B (en) | 2023-12-26 |
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